何谓可见光云图？云图上的亮度取决于什么因素？_爱下问搜题

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问题问答题简答题

何谓可见光云图？云图上的亮度取决于什么因素？

答案

参考答案：

（1）可见光云图是卫星扫描辐射仪在可见光谱段，测量来自地面和云面反射的太阳辐射，将这种地面目标物反射的太阳辐射转换为图像，卫星接收的辐射越大，用越白的色调表示；接收到的辐射越小，用越暗的色调表示，就得到可见光云图。

（2）影响可见光云图亮度的主要因素：

1）反照率对可见光云图色调的影响

2）太阳高度角对可见光云图色调的影响

完形填空

完形填空。

     John worked in an office in a small town. One day his boss   1   him,"John,I want you to go to London and to
   2   Mr Black. Here's the address. His office is near the station.
     John went to London   3 train. He left the station and thought, " The office isn't     4    the station. I'II find it
       5 ．"
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         8 days later, John went to the same city,     9   again he didn't find the office,so he asked someone the way.
It was     10   old woman !  She was very surprised and said , " Are you still looking for that place?"

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判断题

孕妇为了减轻恶心呕吐，可吃一些易消化的干性食品。（）